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1.
Microrna ; 2024 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-39318221

RESUMO

INTRODUCTION: The differential expression of miRNAs, a key regulator in many cell signaling pathways, has been studied in various malignancies and may have an important role in cancer progression, including colorectal cancer (CRC). METHOD: The present study used machine learning and gene interaction study tools to explore the prognostic and diagnostic value of miRNAs in CRC. Integrative analysis of 353 CRC samples and normal tissue data was obtained from the TCGA database and further analyzed by R packages to define the deferentially expressed miRNAs (DEMs). Furthermore, machine learning and Kaplan Meier survival analysis helped better specify the significant prognostic value of miRNAs. A combination of online databases was then used to evaluate the interactions between target genes, their molecular pathways, and the correlation between the DEMs. RESULT: The results indicated that miR-19b and miR-20a have a significant prognostic role and are associated with CRC progression. The ROC curve analysis discovered that miR-20a alone and combined with other miRNAs, including hsa-mir-21 and hsa-mir-542, are diagnostic biomarkers in CRC. In addition, 12 genes, including NTRK2, CDC42, EGFR, AGO2, PRKCA, HSP90AA1, TLR4, IGF1, ESR1, SMAD2, SMAD4, and NEDD4L, were found to be the highest score targets for these miRNAs. Pathway analysis identified the two correlated tyrosine kinase and MAPK signaling pathways with the key interaction genes, i.e., EGFR, CDC42, and HSP90AA1. CONCLUSION: To better define the role of these miRNAs, the ceRNA network, including lncRNAs, was also prepared. In conclusion, the combination of R data analysis and machine learning provides a robust approach to resolving complicated interactions between miRNAs and their targets.

2.
Curr Pharm Des ; 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39297458

RESUMO

Hepatocellular carcinoma (HCC) is influenced by several factors, among which genetic polymorphisms play a key role. Polymorphisms in various genes affect key pathways involved in HCC development, including metabolism, expression of inflammatory cytokines, cell proliferation, and apoptosis regulation. These polymorphisms induce differential effects on susceptibility to HCC, disease progression, and treatment outcomes. Understanding the effect of genetic variations on HCC pathogenesis is essential to elucidate underlying mechanisms and identify potential therapeutic targets. This review explores the diverse roles of genetic polymorphisms in HCC, providing insights into the complex interplay between genetic factors and disease development.

3.
Transl Res ; 274: 35-48, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39260559

RESUMO

Gastric cancer is a major health concern worldwide. The survival rate of Gastric cancer greatly depends on the stage at which it is diagnosed. Early diagnosis is critical for improving survival outcomes. To improve the chances of early diagnosis, regular screening tests, such as an upper endoscopy or barium swallow, are recommended for individuals at a higher risk due to factors like family history or a previous diagnosis of gastric conditions. Biomarkers can be detected and measured using non-invasive methods such as blood tests, urine tests, breath analysis, or imaging techniques. These non-invasive approaches offer many advantages, including convenience, safety, and cost-effectiveness, making them valuable tools for disease diagnosis, monitoring, and research. Biomarker-based tests have emerged as a useful tool for identifying gastric cancer early, monitoring treatment response, assessing the recurrence risk, and personalizing treatment plans. In this current review, we have explored both classical and novel biomarkers for gastric cancer. We have centralized their potential clinical application and discussed the challenges in Gastric cancer research.

4.
Avicenna J Phytomed ; 14(3): 297-304, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39086860

RESUMO

Objective: Radiodermatitis (RD) is a frequent adverse event of radiotherapy (RT). Currently, there is no consensus and approved protocol for the treatment of RD. Curcumin (CUR) is a natural polyphenol obtained from turmeric and it has low intrinsic toxicity in humans. The aim of this systematic review was to explore the efficacy of CUR for prevention and treatment of RD. Materials and Methods: A systematic literature review was performed in the following online databases: Cochrane library, PubMed, Scopus, Web of Science, MEDLINE, and EMBASE. Among the 5 selected records, 3 had a randomized clinical trial (RCT)-design and the other had a pilot and controlled study designed. The included studies were performed on breast cancer (N=3), head and neck cancers (N=1) and different types of cancer (N=1). Results: Four of the studies reported that the application of curcumin in cancer patients undergoing radiotherapy is associated with decreased intensity of radiodermatitis. However, one study did not report any significant effect of CUR on radiodermatitis. This review provides substantial evidence which confirm the clinical value of CUR in cancer supportive care. Conclusion: Further prospective clinical trials in larger scales are warranted in order to determine the " supplemental form and dose of CUR" for RD prevention and treatment in patients receiving radiotherapy.

5.
Avicenna J Phytomed ; 14(3): 388-401, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39086863

RESUMO

Objective: Muscle atrophy due to immobility is a common complication of many diseases and a consequence of therapeutic processes. Immobility and inactivity have been shown to be associated with increased inflammation. The aim of this study was to investigate the therapeutic potential of Wild Bitter Melon (WBM) (Momordica charantia Linn) on muscle atrophy due to immobility in a mouse model. Materials and Methods: This study was performed in two phases of atrophy and recovery on male BALB/c mice which were divided into 3 groups: control, immobilized, and experimental. The treatment period with WBM at a dose of 400 mg/kg daily by gavage was 17 days, including 7 days of being immobilized and 10 days of recovery. At the end of each phase, half of the mice from each group were examined regarding the four limb grip strength, and then histological and biochemical analyses were done. Results: The tissue level of malondialdehyde (MDA) oxidative stress index in the atrophy phase in the atrophy group (5.4567±0.522) nmol/g compared to the control group (3.455±0.065) nmol significantly (p 0.001) <) increased. Also, the tissue level of MDA in the WBM group (3.87±0.035) showed a significant decrease compared to the atrophy group (p<0.01). The strength percentage of four limbs in the mice of the treatment group (-23.46±2.45) was significantly higher than that of the atrophy group (-30.60±3.15) at the end of the atrophy phase. Conclusion: The results suggest that the use of WBM reduces the degree of inflammation, oxidative stress and muscle damage, as well as muscle atrophy, which may improve the muscle atrophy in mice.

6.
Artigo em Inglês | MEDLINE | ID: mdl-38952157

RESUMO

Epigenetic mechanisms have been shown to play a critical role in the development and progression of gastrointestinal [GI] cancers. These mechanisms involve modifications to DNA and histones that can alter gene expression patterns and may contribute to the initiation and progression of cancers. In recent years, epigenetic therapies have emerged as a promising approach to treating GI cancers. These therapies target specific epigenetic modifications, such as DNA methylation and histone acetylation, to restore normal gene expression patterns and inhibit cancer cell growth. Several epigenetic drugs have been approved for the treatment of GI cancers. Moreover, the use of epigenetic therapies in combination with other treatments, such as chemotherapeutic agents, is being studied to improve treatment outcomes. We have provided an overview of the role of epigenetic mechanisms in GI cancer treatment aimed to focus on recent evidence of the use of epigenetic agents in clinical and preclinical GI cancer studies, including gastric, esophageal, hepatic, pancreatic, and colorectal cancers. Overall, the role of epigenetic mechanisms in GI cancer treatments is an active area of research with the potential to improve patients' treatment outcomes and advance cancer treatment strategies.

7.
Curr Pharm Des ; 2024 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-39039672

RESUMO

Chronic inflammation characterizes Inflammatory Bowel Disease (IBD), encompassing Crohn's Disease (CD) and Ulcerative Colitis (UC). Despite modest activity of disease in most UC patients, exacerbations occur, especially in those with severe symptoms, necessitating interventions, like colectomy. Current treatments for IBD, predominantly small molecule therapies, impose significant economic burdens. Drug repurposing offers a cost-effective alternative, leveraging existing drugs for novel therapeutic applications. This approach capitalizes on shared molecular pathways across diseases, accelerating therapeutic discovery while minimizing costs and risks. This article provides an overview of IBD and explores drug repurposing as a promising avenue for more effective and affordable treatments. Through computational and animal studies, potential drug candidates are categorized, offering insights into IBD pathogenesis and treatment strategies.

8.
Curr Med Chem ; 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38874036

RESUMO

INTRODUCTION: microRNA (miRNA) levels are dysregulated in many cancers, suggesting that miRNA-based therapy may be effective. The molecular pathways of colorectal cancer (CRC) development are unknown. METHOD: Understanding miRNAs implicated in CRC formation may reveal new diagnostic and therapeutic targets. Angiogenesis is a key mechanism in tumor growth. CRC treatment may involve inhibiting angiogenesis, but existing drugs can cause negative effects. Tranexamic acid, an FDA-approved medication, may reduce the adverse effects of angiogenesis inhibitors. This work examined miRNAs implicated in CRC angiogenesis and how miR-16 and tranexamic acid may synergistically decrease CRC cell migration and angiogenesis. We identified miRNAs targeting CRC angiogenesis genes using bioinformatic databases. Proteins were docked with tranexamic acid utilizing the PyRx software. Quantitative Real-time PCR was used to analyze the effects of overexpressed miRNA and tranexamic acid on the expression of target genes. Scratch, transwell migration, and Chicken Chorioallantoic Membrane (CAM) assays were used to evaluate the effect of selected miRNA and tranexamic acid on the invasion and angiogenesis of CRC cells. in silico studies identified hsa-miR-16-5p, -101-3p, and 34a-5p as possible CRC angiogenesis modulators. RESULTS: The study found that miR-16 and tranexamic acid influence the expression of VEGFA, ANGPT2, MMP9, and HIF1A. miR-16 and tranexamic acid influenced CRC cell movement in scratch tests and transwell migration assays. Furthermore, the CAM assay results demonstrated that miR-16 and tranexamic acid can alter angiogenesis in CRC. CONCLUSION: These findings highlight the potential of miR-16 and tranexamic acid as combination therapeutic agents for CRC, with the ability to simultaneously target tumorigenesis and angiogenesis.

9.
EXCLI J ; 23: 600-611, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38887391

RESUMO

Muscle atrophy due to limb immobilization and inactivity is a common consequence of many diseases and treatment processes. One of the systems activated in inflammatory conditions is the renin-angiotensin system (RAS). The present study was conducted with the aim of investigating the effects of one of the angiotensin-converting enzyme (ACE) inhibitors, enalapril, on improving muscle atrophy caused by immobility. The study was conducted in three groups: a control, an atrophy, and an atrophy group treated with enalapril on Balb/c mice. After tying a splint to cause atrophy in one of the legs, daily treatment with enalapril intraperitoneally (dissolved in DMSO) at a dose of 10 mg/kg/day was done for 7 days. On the eighth day, the splint was opened and half of the mice were evaluated. Then, in the recovery phase, treatment with enalapril was continued in the remaining mice for 10 days without a splint. At the end of each phase, the mice were examined for the muscle strength of the lower limb muscles, and histological and biochemical analyses were subsequently carried out. The tissue level of the oxidative stress index MDA was evaluated, which showed a significantly lower level in the enalapril group compared to the atrophy group (*P<0.1). Also, inflammatory factors in the enalapril group showed a decrease compared to the atrophy group. The strength of four limbs in the mice of the treatment group (-18.36 ± 1.70 %) was significantly higher than that of the atrophy group (-30.33 ± 3 %) at the end of the atrophy phase and also after 10 days of recovery. The results suggest that the use of enalapril that reduces the activation of angiotensin II-dependent pro-oxidant and pro-inflammatory pathways may improve the functional disorder and muscle necrosis in the murine model of muscle atrophy.

10.
Pathol Res Pract ; 259: 155345, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38805760

RESUMO

Colorectal cancer (CRC) is the most common type of newly diagnosed cancer. Metastatic spread and multifactorial chemoresistance have limited the benefits of current therapies. Hence, it is imperative to identify new therapeutic agents to increase treatment efficacy. One of CRC's most promising immunotherapeutic targets is programmed death-1 (PD-1), a cell surface receptor that regulates immune responses. In this paper, we provide an overview of the therapeutic impact of PD-1 in the treatment of CRC. Cancer cells can exploit the PD-1 pathway by upregulating its programmed death-ligand 1 (PD-L1) ligand to evade immune surveillance. The binding of PD-L1 to PD-1 inhibits T cell function, leading to tumor immune escape. PD-1 inhibitors, such as pembrolizumab and nivolumab, block the PD-1/PD-L1 interaction. Clinical trials evaluating PD-1 inhibitors in advanced CRC have shown promising results. In patients with microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) tumors characterized by high mutation rates and increased immunogenicity, PD-1 blockade has demonstrated remarkable efficacy. As a result, pembrolizumab and nivolumab have received accelerated approval by regulatory authorities for the treatment of MSI-H/dMMR metastatic CRC. Additionally, combination approaches, such as combining PD-1 inhibitors with other immunotherapies or targeted agents, are being explored. Despite the success of PD-1 inhibitors in CRC, challenges still exist. Immune-related adverse events can occur and require close monitoring. In conclusion, PD-1 inhibitors have demonstrated significant therapeutic impact, particularly in patients with MSI-H/dMMR tumors.


Assuntos
Neoplasias Colorretais , Inibidores de Checkpoint Imunológico , Receptor de Morte Celular Programada 1 , Humanos , Neoplasias Colorretais/patologia , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Receptor de Morte Celular Programada 1/antagonistas & inibidores , Receptor de Morte Celular Programada 1/metabolismo , Inibidores de Checkpoint Imunológico/uso terapêutico , Antígeno B7-H1/antagonistas & inibidores , Antígeno B7-H1/metabolismo , Imunoterapia/métodos , Antineoplásicos Imunológicos/uso terapêutico , Anticorpos Monoclonais Humanizados
11.
Curr Pharm Des ; 30(21): 1650-1658, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38712368

RESUMO

Current interest in adhesion formation stems from its global impact on the function and quality of life, spanning a spectrum of subtle impairments to significant disabilities, based on the affected area and the extent of adhesion. Yet therapeutic agents are restricted to prophylactic anti-inflammatories, revision surgeries, and biological and physical techniques, none of which grant a decent outcome. Recent advancements in tissue- engineered biomaterials, drug delivery systems, and fabricating technologies such as nanoparticles, hydrogels, and weaving or braiding demonstrate potential for improved outcomes. However, none of the mentioned methods have reliable outcomes, thus this study aims to elucidate the mechanisms involved in the pathophysiology of tendon adhesion and post-surgical adhesion band formation (PSAB), with a closer look at inflammatory pathways stimulating the process. This article consolidates information on diverse therapeutic and prophylactic methods and cutting-edge technologies, aiming to provide a comprehensive update on this topic, and providing researchers an avenue for new and innovative ideas for further investigations.


Assuntos
Tendões , Humanos , Aderências Teciduais/prevenção & controle , Aderências Teciduais/tratamento farmacológico , Tendões/cirurgia , Tendões/efeitos dos fármacos , Animais , Sistemas de Liberação de Medicamentos , Materiais Biocompatíveis/química , Materiais Biocompatíveis/farmacologia
12.
Curr Pharm Des ; 30(21): 1667-1680, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38738725

RESUMO

Cardiovascular diseases place a considerable burden on global health systems, contributing to high rates of morbidity and mortality. Current approaches to detecting and treating Cardiovascular Diseases (CVD) often focus on symptomatic management and are initiated after the disease has progressed. Personalized medicine, which tailors medical interventions to individual characteristics, has emerged as a promising strategy for improving cardiovascular health outcomes. This article provides an overview of personalized medicine in the context of CVD, with a specific emphasis on FDA-approved interventions. It explores the potential benefits, challenges, and future directions of personalized medicine in cardiovascular disorders. By reviewing the advancements in this field, this article underscores the importance of early detection, intervention, and innovative treatment options in reducing the impact of CVD on individuals and society.


Assuntos
Doenças Cardiovasculares , Farmacogenética , Medicina de Precisão , United States Food and Drug Administration , Humanos , Doenças Cardiovasculares/tratamento farmacológico , Doenças Cardiovasculares/genética , Estados Unidos
13.
Curr Pharm Des ; 30(21): 1659-1666, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38747232

RESUMO

Nanotechnology has emerged as an effective approach to cancer treatment, including Colorectal Cancer (CRC). While conventional treatments, such as chemotherapeutic agents, are used to manage CRC, their efficacy can be improved using drug delivery systems that enhance their bioavailability and reduce side effects. Niosomes, polymeric nanoparticles, have shown promise as biocompatible vehicles that can transport hydrophilic and lipophilic molecules. This can result in reduced drug dosage and increased efficacy. This review examines the use of niosomal formulations as a delivery platform for treating CRC and provides practical insights into their clinical applications.


Assuntos
Antineoplásicos , Produtos Biológicos , Neoplasias Colorretais , Sistemas de Liberação de Medicamentos , Lipossomos , Humanos , Neoplasias Colorretais/tratamento farmacológico , Antineoplásicos/química , Antineoplásicos/administração & dosagem , Antineoplásicos/farmacologia , Produtos Biológicos/química , Produtos Biológicos/administração & dosagem , Produtos Biológicos/uso terapêutico , Animais , Nanopartículas/química
14.
Genes (Basel) ; 15(4)2024 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-38674408

RESUMO

Colorectal cancer (CRC) imposes a significant healthcare burden globally, prompting the quest for innovative biomarkers to enhance diagnostic and therapeutic strategies. This study investigates the G-protein signaling modulator (GPSM) family across several cancers and presents a comprehensive pan-cancer analysis of the GPSM2 gene across several gastrointestinal (GI) cancers. Leveraging bioinformatics methodologies, we investigated GPSM2 expression patterns, protein interactions, functional enrichments, prognostic implications, genetic alterations, and immune infiltration associations. Furthermore, the expression of the GPSM2 gene was analyzed using real-time analysis. Our findings reveal a consistent upregulation of GPSM2 expression in all GI cancer datasets analyzed, suggesting its potential as a universal biomarker in GI cancers. Functional enrichment analysis underscores the involvement of GPSM2 in vital pathways, indicating its role in tumor progression. The prognostic assessment indicates that elevated GPSM2 expression correlates with adverse overall and disease-free survival outcomes across multiple GI cancer types. Genetic alteration analysis highlights the prevalence of mutations, particularly missense mutations, in GPSM2. Furthermore, significant correlations between GPSM2 expression and immune cell infiltration are observed, suggesting its involvement in tumor immune evasion mechanisms. Collectively, our study underscores the multifaceted role of GPSM2 in GI cancers, particularly in CRC, emphasizing its potential as a promising biomarker for prognosis and therapeutic targeting. Further functional investigations are warranted to elucidate its clinical utility and therapeutic implications in CRC management.


Assuntos
Biomarcadores Tumorais , Neoplasias Colorretais , Regulação Neoplásica da Expressão Gênica , Humanos , Biomarcadores Tumorais/genética , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Biologia Computacional/métodos , Perfilação da Expressão Gênica/métodos , Prognóstico , Peptídeos e Proteínas de Sinalização Intracelular/genética , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo
15.
Curr Pharm Des ; 30(18): 1386-1397, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38623972

RESUMO

Due to self-renewal, differentiation, and limitless proliferation properties, Cancer Stem Cells (CSCs) increase the probability of tumor development. These cells are identified by using CSC markers, which are highly expressed proteins on the cell surface of CSCs. Recently, the therapeutic application of CSCs as novel biomarkers improved both the prognosis and diagnosis outcome of colorectal Cancer. In the present review, we focused on a specific panel of colorectal CSC markers, including LGR5, ALDH, CD166, CD133, and CD44, which offers a targeted and comprehensive analysis of their functions. The selection criteria for these markers cancer were based on their established significance in Colorectal Cancer (CRC) pathogenesis and clinical outcomes, providing novel insights into the CSC biology of CRC. Through this approach, we aim to elevate understanding and stimulate further research for developing effective diagnostic and therapeutic strategies in CRC.


Assuntos
Biomarcadores Tumorais , Neoplasias Colorretais , Células-Tronco Neoplásicas , Humanos , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/patologia , Neoplasias Colorretais/metabolismo , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , Biomarcadores Tumorais/metabolismo , Prognóstico , Animais
16.
Curr Pharm Des ; 30(17): 1295-1306, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38638053

RESUMO

Hydrogen therapy has emerged as a possible approach for both preventing and treating cancer. Cancers are often associated with oxidative stress and chronic inflammation. Hydrogen, with its unique physiological functions and characteristics, exhibits antioxidant, anti-inflammatory, and anti-apoptotic properties, making it an attractive candidate for cancer treatment. Through its ability to mitigate oxidative damage, modulate inflammatory responses, and sustain cellular viability, hydrogen demonstrates significant potential in preventing cancer recurrence and improving treatment outcomes. Preclinical studies have shown the efficacy of hydrogen therapy in several cancer types, highlighting its ability to enhance the effectiveness of conventional treatments while reducing associated side effects. Furthermore, hydrogen therapy has been found to be safe and well-tolerated in clinical settings. Nonetheless, additional investigations are necessary to improve a comprehensive understanding of the mechanisms underlying hydrogen's therapeutic potential and refine the administration and dosage protocols. However, further clinical trials are still needed to explore its safety profile and capacity. In aggregate, hydrogen therapy represents an innovative and promising treatment for several malignancies.


Assuntos
Hidrogênio , Neoplasias , Estresse Oxidativo , Humanos , Hidrogênio/farmacologia , Hidrogênio/uso terapêutico , Hidrogênio/química , Neoplasias/tratamento farmacológico , Neoplasias/patologia , Animais , Estresse Oxidativo/efeitos dos fármacos , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico
17.
Anticancer Agents Med Chem ; 24(12): 916-927, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38584531

RESUMO

BACKGROUND: Colorectal cancer (CRC) remains a significant contributor to mortality, often exacerbated by metastasis and chemoresistance. Novel therapeutic strategies are imperative to enhance current treatments. The dysregulation of the PI3K/Akt signaling pathway is implicated in CRC progression. This study investigates the therapeutic potential of Wortmannin, combined with 5-fluorouracil (5-FU), to target the PI3K/Akt pathway in CRC. METHODS: Anti-migratory and antiproliferative effects were assessed through wound healing and MTT assays. Apoptosis and cell cycle alterations were evaluated using Annexin V/Propidium Iodide Apoptosis Assay. Wortmannin's impact on the oxidant/antioxidant equilibrium was examined via ROS, SOD, CAT, MDA, and T-SH levels. Downstream target genes of the PI3K/AKT pathway were analyzed at mRNA and protein levels using RTPCR and western blot, respectively. RESULTS: Wortmannin demonstrated a significant inhibitory effect on cell proliferation, modulating survivin, cyclinD1, PI3K, and p-Akt. The PI3K inhibitor attenuated migratory activity, inducing E-cadherin expression. Combined Wortmannin with 5-FU induced apoptosis, increasing cells in sub-G1 via elevated ROS levels. CONCLUSION: This study underscores Wortmannin's potential in inhibiting CRC cell growth and migration through PI3K/Akt pathway modulation. It also highlights its candidacy for further investigation as a promising therapeutic option in colorectal cancer treatment.


Assuntos
Antineoplásicos , Apoptose , Proliferação de Células , Neoplasias Colorretais , Ensaios de Seleção de Medicamentos Antitumorais , Fosfatidilinositol 3-Quinases , Proteínas Proto-Oncogênicas c-akt , Wortmanina , Humanos , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/patologia , Neoplasias Colorretais/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Proteínas Proto-Oncogênicas c-akt/antagonistas & inibidores , Wortmanina/farmacologia , Fosfatidilinositol 3-Quinases/metabolismo , Antineoplásicos/farmacologia , Antineoplásicos/química , Relação Dose-Resposta a Droga , Transdução de Sinais/efeitos dos fármacos , Células Tumorais Cultivadas , Relação Estrutura-Atividade , Estrutura Molecular , Fluoruracila/farmacologia , Inibidores de Fosfoinositídeo-3 Quinase/farmacologia , Movimento Celular/efeitos dos fármacos
18.
Curr Pharm Des ; 30(11): 859-867, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38468533

RESUMO

BACKGROUND: Formation of adhesion bands is a frequent clinical complication after tendon injury or surgery with limited treatment options. This study investigates the repurposing of Angiotensin-Converting-Enzyme Inhibitor (ACEI) in attenuating post-operative tendon-sheath adhesion bands in an Achilles tendon rat model. METHODS: Structural, mechanical, histological, and biochemical characteristics of the Achilles tendons were compared in the presence and absence of oral ACEI (enalapril) using the Achilles tendon adhesion (TA) model in rats. Inflammation and total fibrosis of tendon tissues were compared between groups using molecular investigations along with macroscopic and histological scoring methods. RESULTS: ACEI significantly alleviated the severity, length, and density of Achilles TAs. Moreover, histopathological changes, recruitment of inflammatory cells, and inflammation were significantly decreased in post-operative tissue samples as quantified with the Moran scoring model. We showed that ACEI treatment elicits a potent anti-fibrotic effect on tendon tissue samples, as illustrated by decreasing the severity and extent of the formed fibrotic tissue and collagen accumulation at the site of surgery when scored either by Tang or Ishiyama grading systems. The H&E staining showed no histopathological changes or damage to the principal organs. CONCLUSION: Our results showed that ACEI is a safe and effective therapeutic candidate with potent immunomodulatory and anti-fibrotic features to alleviate surgery-induced development of fibrotic adhesive tissue. However, its efficacy needs to be further validated in clinical studies.


Assuntos
Inibidores da Enzima Conversora de Angiotensina , Reposicionamento de Medicamentos , Animais , Masculino , Ratos , Tendão do Calcâneo/efeitos dos fármacos , Tendão do Calcâneo/patologia , Tendão do Calcâneo/cirurgia , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Modelos Animais de Doenças , Aderências Teciduais/prevenção & controle , Aderências Teciduais/patologia , Ratos Wistar
19.
Curr Pharm Des ; 30(13): 975-987, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38500284

RESUMO

Gynecological cancers (GCs), ovarian, cervical, and endometrial/uterine cancers, are often associated with poor outcomes. Despite the development of several therapeutic modalities against GCs, the effectiveness of the current therapeutic approaches is limited due to their side effects, low therapeutic index, short halflife, and resistance to therapy. To overcome these limitations, nano delivery-based approaches have been introduced with the potential of targeted delivery, reduced toxicity, controlled release, and improved bioavailability of various cargos. This review summarizes the application of different nanoplatforms, such as lipid-based, metal- based, and polymeric nanoparticles, to improve the chemo/radio treatments of GC. In the following work, the use of nanoformulated agents to fight GCs has been mentioned in various clinical trials. Although nanosystems have their own challenges, the knowledge highlighted in this article could provide deep insight into translations of NPs approaches to overcome GCs.


Assuntos
Antineoplásicos , Neoplasias dos Genitais Femininos , Nanopartículas , Nanotecnologia , Humanos , Feminino , Neoplasias dos Genitais Femininos/tratamento farmacológico , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/administração & dosagem , Nanopartículas/química , Sistemas de Liberação de Medicamentos , Animais
20.
Mol Biol Rep ; 51(1): 358, 2024 Feb 24.
Artigo em Inglês | MEDLINE | ID: mdl-38400849

RESUMO

BACKGROUND: Cardiomyocytes form, transport, and metabolize the omnipresent metabolite adenosine. Depending upon the adenosine concentrations and the pharmacological properties of receptor subtypes, adenosine exerts (patho)physiological responses in the cardiovascular system. The objective of this review is to present different protective mechanisms of A1-adenosine receptor inhibitors in cardiovascular diseases. METHODS AND RESULTS: Literature references were collected and sorted using relevant keywords and key phrases as search terms in scientific databases such as Web of Science, PubMed and Google Scholar. A1 adenosine receptor regulates free fatty acid metabolism, lipolysis, heart rate, blood pressure, and cardiovascular toxicity. The evidence clearly supporting the therapeutic potency of pharmacological A1 adenosine receptors agonists and antagonists in modulating cardiovascular risk factor parameters and treatment of cardiovascular diseases. CONCLUSION: This review summarizes the protective role of pharmacological A1-adenosine receptor regulators in the pathogenesis of cardiovascular diseases for a better management of cardiovascular diseases.


Assuntos
Doenças Cardiovasculares , Antagonistas de Receptores Purinérgicos P1 , Humanos , Antagonistas de Receptores Purinérgicos P1/farmacologia , Doenças Cardiovasculares/tratamento farmacológico , Pressão Sanguínea , Adenosina , Receptores Purinérgicos P1
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